SPECIAL

MEDICINAL PLANTS TOUR of Foster Botanical Garden, led by Wayne Wong, 1 p.m. Dec. 20; requires park admission, $3-$5; register, 522-7066.

23rd ANNUAL CITY HOLIDAY WREATH DISPLAY, 8 a.m.-11 p.m., through Jan. 4, Honolulu Hale, Lane Gallery; free; 768-6622.

ONGOING

FREE GARDEN MULCH, available 9 a.m.-3 p.m. Saturdays, Halawa Xeriscape Garden, 99-1269 Iwaena St.; self-service, bring containers and shovel; 748-5041, www.boardofwatersupply.com.

GARDEN TOUR, 1-mile (1.5-hour) "easy" guided walk to view the Kane'ohe garden's flowers, plants and trees; 10:30 a.m. and 1 p.m. daily (keiki-focused tour, 1 p.m. Sundays); Senator Fong's Plantation and Gardens; $14.50, discounts for kama'aina; 239-6775.

NIAULANI NATURE WALK, guided tour through an old-growth forest; 9:30 a.m. Mondays; Volcano Art Center's Niaulani Campus, Volcano Village, Big Island; donations accepted; 808-967-8222, www.volcanoartcenter.org.

"PLANTS OF PARADISE GARDEN TOUR," a tour of the museum gardens, 11:30 a.m. daily; Bishop Museum (meeting at Hawaiian Hall entrance); required museum admission; 847-3511

GUIDED TOURS, view plants of the rainforest; 10 a.m. Mondays-Saturdays; Lyon Arboretum, Manoa Valley; $5; reservations: 988-0461.

LYON ARBORETUM WORK DAY, weeding and garden maintenance with arboretum grounds crew, first Saturday monthly; times/information: 988-0455.

MANOA HERITAGE CENTER, discover an ancient Hawaiian heiau and native Hawaiian plants while learning Manoa Valley's history; 9 a.m.-4 p.m. Tuesdays-Saturdays; Manoa Heritage Center; $7 general, $4 seniors and military, students free; visits and tours by reservation only: 988-1287, www.manoaheritagecenter.org.

SECOND SATURDAY AT THE GARDEN, featuring poinsettia information and sale, and chance to stroll and learn about home gardening from certified Hawai'i master gardeners and Urban Garden Center volunteers; 9 a.m.-12 p.m. Dec. 13; Pearl City Urban Garden Center; free; 453-6050, ww.ctahr.hawaii.edu/ougc.

SECOND SATURDAY AT THE GARDEN, stroll and learn about home gardening from certified Hawai'i master gardeners and Urban Garden Center volunteers; 9 a.m.-12 p.m. every second Saturday of the month; Pearl City Urban Garden Center; free; 453-6050, www.ctahr.hawaii.edu/ougc.

SELF-DIRECTED DRAWING AND PAINTING, rendering of plants, flowers and seed pods from the garden; 9-10 a.m. Wednesdays; Wahiawa Botanical Garden; reservations: 621-5463.

Send announcements, at least 10 days in advance of the event, with contact name and phone number, to: Island Life, The Advertiser, P.O. Box 3110, Honolulu, HI 96802; or islandlife@honoluluadvertiser.com, with "Home & Garden Cal" in the subject line.